Graco 308652Y Manuel d'utilisateur télécharger pdf (Page 12)

12 308652

Service

Service Kits

Service Kits may be ordered separately.

To repair the air valve, order Part No. 238853. Parts

included in the Air Valve Service Kit are marked with

an asterisk in the Parts Drawing on page 17, for

example (3*).

For fluid section repair section parts, see the Service

Kit Matrix on page 15. Parts included in the Fluid

Section Service Kit are marked with a dagger in the

Parts Drawing on page 17, for example (4{).

Servicing the Air Valve

Service the air valve as follows. See Fig. 5.

1. Relieve the fluid pressure, and disconnect air

line from the pump.

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure on page 8.

2. Remove the four screws (14) that hold the valve

cover (7) on the center housing (1).

3. Remove the valve block (4) and valve carriage (2),

and replace the u-cups (3). Replace the valve

carriage and valve block. When you replace the

valve carriage, position it all the way to one side or

the other.

NOTE: The valve block shown in Fig. 5 is for

pumps with an air-operated air motor. If your

pump has a solenoid-operated air motor, this step

does not pertain. Items 2, 3, 4, 16, and 17 are not

required.

4. Clean any parts that are dirty.

5. To reinstall the valve cover (7), spread cover apart

enough not to damage the square ring packings

(6) and slide cover (7) into the center section.

6. Install the screws (14), and torque to 40 to 45 in-lb

(4.5 to 5.0 NSm). See Torque Sequence on page

18.

7. Reconnect the pump.

Fig. 5

ti10664a

Lips of u-cups (3) must face toward each other

(toward center of valve carriage (2)).

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 23 24

Commentaires sur ces manuels

Pas de commentaire

Graco 308652Y Manuel d'utilisateur Page 12

Commentaires sur ces manuels

Produits connexes et manuels pour Pompes à eau Graco 308652Y